HADOOP-19410. [JDK17] Upgrade JUnit from 4 to 5 in hadoop-client-integration-tests. (#7650)

* HADOOP-19410. [JDK17] Upgrade JUnit from 4 to 5 in hadoop-client-integration-tests. (#7650)

Co-authored-by: Chris Nauroth <cnauroth@apache.org>
Reviewed-by: Chris Nauroth <cnauroth@apache.org>
Signed-off-by: Shilun Fan <slfan1989@apache.org>

hadoop-client-modules/hadoop-client-integration-tests/pom.xml

@@ -47,6 +47,26 @@
       <artifactId>junit</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-params</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.platform</groupId>
+      <artifactId>junit-platform-launcher</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.lz4</groupId>
       <artifactId>lz4-java</artifactId>

hadoop-client-modules/hadoop-client-integration-tests/src/test/java/org/apache/hadoop/example/ITUseHadoopCodecs.java

@@ -20,8 +20,8 @@
 
 package org.apache.hadoop.example;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 
 import java.io.*;
 import java.util.Arrays;
@@ -37,7 +37,7 @@ import org.apache.hadoop.io.compress.CompressionInputStream;
 import org.apache.hadoop.io.compress.CompressionOutputStream;
 import org.apache.hadoop.io.compress.zlib.ZlibFactory;
 import org.apache.hadoop.util.ReflectionUtils;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -134,8 +134,8 @@ public class ITUseHadoopCodecs {
       int expected;
       do {
         expected = originalIn.read();
-        assertEquals("Inflated stream read by byte does not match",
-                expected, inflateFilter.read());
+        assertEquals(expected, inflateFilter.read(),
+            "Inflated stream read by byte does not match");
       } while (expected != -1);
     }
 

hadoop-client-modules/hadoop-client-integration-tests/src/test/java/org/apache/hadoop/example/ITUseMiniCluster.java

@@ -20,13 +20,14 @@
 
 package org.apache.hadoop.example;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 import java.io.IOException;
 import java.net.URISyntaxException;
 
-import org.junit.After;
-import org.junit.Assert;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -69,7 +70,7 @@ public class ITUseMiniCluster {
       + "fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident,"
       + " sunt in culpa qui officia deserunt mollit anim id est laborum.";
 
-  @Before
+  @BeforeEach
   public void clusterUp() throws IOException {
     final Configuration conf = new HdfsConfiguration();
     cluster = new MiniDFSCluster.Builder(conf)
@@ -84,7 +85,7 @@ public class ITUseMiniCluster {
     yarnCluster.start();
   }
 
-  @After
+  @AfterEach
   public void clusterDown() {
     if (cluster != null) {
       cluster.close();
@@ -111,7 +112,7 @@ public class ITUseMiniCluster {
     }
     try (FSDataInputStream in = fs.open(path)) {
       final String result = in.readUTF();
-      Assert.assertEquals("Didn't read back text we wrote.", TEXT, result);
+      assertEquals(TEXT, result, "Didn't read back text we wrote.");
     }
   }